Supporting structure for the crushing head of a cone crusher

Abstract

A novel supporting structure for the crushing head of a cone crusher in which an eccentric rotating in a frame and the crushing head gyrating in the inner periphery of the eccentric are movable up and down by hydraulic pressure, characterized in that a cylindrical socket is inserted in a sleeve of the frame which is slidable up and down while the eccentric and the crushing head are supported by a hydraulic mechanism mounted on the upper end of the sleeve, thereby reducing the overall height of the cone crusher.

What is claimed is: 
     
       1. A cone crusher, comprising: a frame defining a sleeve having an upper end;   an eccentric situated for rotation within the frame;   a cylindrical socket shaft situated for reciprocal movement within the sleeve, said eccentric extending into and being supported by the socket shaft;   a crushing head partly defining a crushing chamber and having a portion extending into the eccentric for gyration of the crushing head relative thereto;   a hydraulic fluid chamber situated at the upper end of the sleeve below the crushing chamber, said hydraulic fluid chamber providing hydraulic pressure for reciprocating said eccentric and the crushing head; and   an outer cylinder which together with the upper end of the sleeve partly defines the hydraulic fluid chamber, said outer cylinder supporting said cylindrical socket shaft and being reciprocally moved by the hydraulic pressure in the hydraulic fluid chamber.   
     
     
       2. The cone crusher as defined in claim 1, further comprising: a drive unit engageable with the eccentric.   
     
     
       3. The cone crusher as defined in claim 2, wherein the hydraulic fluid chamber is ring shaped. 
     
     
       4. The cone crusher structure as defined in claim 3, wherein the socket shaft includes a flange adjacent to the crushing head and the outer cylinder includes a flange which engages the socket shaft flange, said outer cylinder flange being situated for reciprocal movement between the socket shaft flange and the upper end of the sleeve. 
     
     
       5. The cone crusher as defined in claim 2, wherein the eccentric includes a toothed coupling serving as an upper coupling and the drive means includes a toothed coupling serving as a lower coupling engageable with the upper coupling, the extent of said engagement being such that the drive from said drive unit to the eccentric is maintained throughout the reciprocal movement of the socket shaft. 
     
     
       6. The cone crusher as defined in claim 2, wherein the crushing head comprises a cone-shaped body and a main shaft inserted in said body. 
     
     
       7. The cone crusher as defined in claim 2, wherein the crushing head comprises a mushroom shaped solid with a hollow inner portion. 
     
     
       8. The cone crusher as defined in claim 1, wherein the crushing head comprises a cone-shaped body and a main shaft inserted in said body. 
     
     
       9. The cone crusher as defined in claim 1, wherein the crushing head comprises a mushroom shaped solid with a hollow inner portion.